Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Summary of identified intangible assets (acquired above-market leases and in-place leases) and intangible liabilities (acquired below-market leases)

The following summarizes our identified intangible assets (acquired above-market leases and in-place leases) and intangible liabilities (acquired below-market leases) as of June 30, 2014 and December 31, 2013 (in thousands):

	June 30, 2014			December 31, 2013
Identified intangible assets (included in other assets):
Gross amount	$	702,189		$	746,704
Accumulated amortization	(382,231		)	(343,339		)
Net	$	319,958		$	403,365
Identified intangible liabilities (included in deferred revenue):
Gross amount	$	676,075		$	671,380
Accumulated amortization	(461,952		)	(429,138		)
Net	$	214,123		$	242,242

Schedule of marketable securities

At June 30, 2014 and December 31, 2013, we held the following marketable securities (in thousands):

	June 30, 2014		December 31, 2013
Equity marketable securities	$	4,532	$	4,307
Commercial mortgage-backed securities	35,380		24,419
Rake bonds	—		3,323
Total marketable securities available-for-sale	$	39,912	$	32,049